I’m starting with a vintage chopper. It is a 1966 triumph 6T “Thunderbird”. The 6T was a dumbed down version of the T120 Bonneville. The T120 put out about 47HP. The Thunderbird was 37HP. Each was the same 649cc displacement engine, but the Thunderbird had lower compression, different timing, and smaller carbs.
The plan is to tear down the entire bike. Next I’m going to tear the engine down to the crank, and rebuild with every performance part I can access.
New engine parts
All bearings
750cc big bore kit- alloy pistons
performance oil pump
alloy push rods
upgraded valves/springs/guides
aftermarket oil filter
performance cams(if I can find them)
After I tear down the engine-
The cases and covers are all getting polished.
Then I plan to order any misc. parts and rebuild the engine
After I rebuild the engine-
The pipes are getting wrapped.
2005 sportster front wheel and brake system for it.
Flat black frame and tins
1" handlebars
Recovered/shortened seat
Misc black powdercoating on everything chrome
THIS IS HOW THE BIKE LOOKED IN 1966
THIS IS BASICALLY HOW I BOUGHT IT. The bike has a hex springer front end, Paucho frame, spool front wheel, stock sprocket/drum brake rear wheel, “sporster” tank, drag specialties seat, dual mikuni carbs, and 7/8" drag bars
My dad had a 69 Daytona, nice bike. Then he sold it for a 71 Norton Commando 750 which was really really nice. He said that the Daytona was much more rough, the most he could ride it for was about 2 hours. Cool looking project. I’d love to pick up a Moto Guzzi in the future.
Old & New head. I was going to fix and rebuild my old one, but I found this new one, already rebuilt and blasted. So, I’m throwing the new head parts I purchased on Ebay to recoup most of what I paid for the rebuilt one.
Old Head-
New head-
So far I’ve tore off the top end. I started the primary side but had to stop because I had to order a couple triumph specialty tools from England.
The only “major” issues I’ve found so far are…
Two out of four broken pushrod cups(valve side)
Shorted alternator wire in engine(now I know why it wasn’t charging all the time)
This is the brake system I picked up to go with the Sportster front wheel. The connecting rod and bracket are custom made to adapt a late model Harley brake to a springer front end. If all goes well there should be only one hole to drill in the springer.
This is the only tail light I will be running. It will mount to the right side axle after some modifications.
Thanks.
It’s not going to have any flames. Going flat black to match my truck.
Frame is not getting any work done to it. I like the old school stance just the way it is…
I love the fact that its a triumph and someone already chopped it but im not liking the huge rake and the seat which you said was coming off anyway. solo spring seat and a shorter less rake would make this project titties.
